On 5/21/07, Mihai Bisca <[EMAIL PROTECTED]> wrote: > On 5/21/07, Deepayan Sarkar <[EMAIL PROTECTED]> wrote: > > > > I get the following error message: Error in validDetails.text(x) : > > > Invalid 'rot' value > > > This depends on the data (and I haven't been able to reproduce it), > > but I'm pretty sure the culprit is the calculation of the rotation for > > the contour labels. You can probably work around it by changing > > 'label.style' (see ?panel.contourplot). I can try to fix it if you > > give me a reproducible example (e.g. save() your matrix and send it to > > me offline). > > Thank you for your interest. I'm new to R, but pretty enthusiastic > about it. You can find attached the matrix in question. It's a > representation of an optic disc from a retinal photograph. > > I noticed that the error occurs only when using the option 'pretty=T'. > Also, it happens in two of about seven or eight similar objects I > played with.
Cool example. It's a problem with the label rotation calculation (some are NaN, so presumably there's a division by zero somewhere). I'll try to track it down. For your example, I don't think labels are going to be of any use, so I would suggest you try something like contourplot(bd.cn, cuts = 20, labels = FALSE) or levelplot(bd.cn) both of which should be fine. -Deepayan ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
